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Use 1" furnace filter instead of 5" ?
QUESTION:I have a furnace built for a 25"x20"x5" filter. I've discovered these
are *really* expensive compared to the 1" filters.
Is there any strong reason not to use a 1" filter with some sort of
space adapater in this application?
Internet searches on this have not resulted in any material articles.
ANSWER: Why not use the proper filter? An Aprilaire filter [5"] is an excellent
filter, and should be changed annually at a minimum. [Honeywell also makes
a similar filter.] A 1" filter is not as efficient in removing material
from the air and at best should be changed monthly. To save a few bucks by
using something that requires more changes, is less efficient, and ends up
being "Mickey Moused" in seems less appealing to me.
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